IB Bio

Quiz
•
Science
•
12th Grade
•
Hard
+5
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In an experiment on osmosis, red blood cells were immersed in a salt solution for two hours. The micrographs show the appearance of these cells before and after immersion in the salt solution. What explains the observed changes?
The salt solution was hypertonic and entered the red blood cells.
The salt solution was hypotonic and disrupted the membranes of the red blood cells.
The salt solution was hypertonic and water moved into it from the red blood cells.
The salt solution was hypotonic and minerals salts were lost from the red blood cells.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What can cause an enzyme to be denatured?
Binding the enzyme to the substrate
Cooling the enzyme to 50C below optimum temperature
Changing the pH
Inactivating the enzyme gene.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What property of water makes it possible for insects to walk on its surface?
Adhesion of water molecules
Cohesion of water molecules
High specific heat capacity
High density
Answer explanation
The property that allows insects to walk on water is the cohesion of water molecules. This cohesion creates surface tension, enabling small insects to stay on the surface without sinking.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Where do hydrogen bonds form?
Between the slight negative charge of hydrogen and slight positive charge of oxygen within a water molecule
Between the slight positive charge of hydrogen and slight negative charge of oxygen within a water molecule
Between the slight positive charge of hydrogen and slight negative charge of oxygen in different water molecules
Between the slight negative charge of hydrogen and slight positive charge of oxygen in different water molecules
Answer explanation
Hydrogen bonds form between the slight positive charge of hydrogen in one water molecule and the slight negative charge of oxygen in another water molecule, allowing for the unique properties of water.
Tags
NGSS.HS-ESS2-5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What cell component is found in eukaryotic cells but not in prokaryotic cells?
Mitochondria for respiration
DNA containing genetic information
Ribosomes for protein synthesis
Cell wall to maintain shape
Answer explanation
Mitochondria are organelles responsible for respiration and energy production, and they are present in eukaryotic cells but absent in prokaryotic cells. The other options, such as DNA and ribosomes, are found in both cell types.
Tags
NGSS.HS-LS1-7
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a consequence of anaerobic cell respiration in muscles?
Large yield of readily available ATP and ethanol production
Small yield of readily available ATP and lactate accumulation
Large yield of ATP and production of carbon dioxide and lactic acid
Small yield of ATP that is not readily available and carbon dioxide production
Answer explanation
Anaerobic respiration in muscles results in a small yield of ATP due to the lack of oxygen. This process leads to lactate accumulation, which can cause muscle fatigue, making the correct choice "Small yield of readily available ATP and lactate accumulation."
Tags
NGSS.HS-LS2-3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which process is an example of catabolism?
Translation of mRNA
Replication of DNA
Hydrolysis of protein
Synthesis of a disaccharide
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